Stethophonograph
胸音描记器
🗣️ 情景例句
Here it is.
在这儿。
I did exercise last week.
我上星期做练习。
Then it turned in a semicircle, ran straight again, and turned in another semicircle to the opposite side.
然后转一个半圈，再沿直线飞，再朝反方向转个半圈。